Hola Rubén.
Your collection is very interesting, but difficult to propose a name.
I exclude P. infuscata (if this taxon really exists) because it should belong to the complex succosa/succosella, so with a yellowish latex.
The spore oranamentation reminds me P. limnaea but I never saw a collection with such colours.
Peziza atrovinosa Cooke is given (by Donadini) with biguttulate ascospores, 15.5-16.5 × 7.5-8 µm, elongated warts that can produce a network; flesh without latex; it grows in sandy soil in wet areas, under Salix.
P. badiofuscoides Donadini has uni-(bi-)guttulate ascospores, 15-16 × 7.5-8.5 µm, with elongated and ± anastomosed warts, but the flesh produces an opalescent latex.
As I never found these two species I cannot help you more.
Keep the material, it could be useful for a sequencing.

Hi everybody,

I wonder if the dark violet tint is fully natural, it seems to spray on the ground nearby the Peziza?

Gracias por sus respuestas, Nicolas y Jean-Pierre.

Guardaré el material para un futuro análisis de ADN.

Mando otra foto hecha un poco más alejada para ver si se aprecian mejor los colores de los apotecios. Eran negros y me parecieron al principio ejemplares de P. saniosa, pero no tenían látex.

Los colores estaban un poco subidos de tono, pero la foto se hizo dentro de un hayedo y con muy poca luz.

Saludos

Rubén

Why not Peziza badia?
Macro maybe looks strange because they are so water-soaked, but micro fits well.
Cheers,
Raúl